Antenna Designer Measurement Techniques

Question 1

Which instrument is commonly used to measure antenna radiation patterns?

Accepted Answer

Anechoic chamber

Answer

Antenna radiation patterns are measured using an anechoic chamber, which eliminates reflections and interference for accurate readings.

Question 2

What does a network analyzer measure in antenna testing?

Accepted Answer

Impedance and VSWR

Answer

A network analyzer measures parameters such as impedance, return loss, and VSWR to ensure antenna performance and matching.

Question 3

What is the significance of return loss in antenna measurement?

Accepted Answer

Higher return loss indicates better impedance matching

Answer

Return loss indicates how much power is reflected back from an antenna, with higher return loss signifying better impedance matching and efficiency.

Question 4

What is the purpose of measuring Voltage Standing Wave Ratio (VSWR) in antennas?

Accepted Answer

Indicates impedance matching efficiency

Answer

VSWR measures the efficiency of power transmission between an antenna and its transmission line, where a lower VSWR indicates better matching.

Question 5

Which parameter is assessed by measuring antenna gain?

Accepted Answer

Signal strength and efficiency

Answer

Antenna gain measures how efficiently an antenna converts input power into radio waves, impacting signal strength and coverage.

(CAD) Certified Antenna Designer Practice Test